html {
    background-color: #f1f2f3;
}

.border-and-shadow {
    border: 1px solid #aaa;
    border-radius: 2px;
}

.border-and-shadow:hover {
    box-shadow: 0 0 3px 3px #e1e2e3;
}

.business-frame {
    overflow: hidden;
    margin-top: 10px;
    padding: 5px;
}

body {
    overflow-y: scroll;
}

/*下面这几个是页面基本的样式*/
.container {
    padding: 5px;
    background-color: #f1f2f3;
}

.controls-wrapper {
    position: fixed;
    z-index: 50;
    top: 0;
    left: 0;
    right: 0;
    padding: 10px 5px 5px 5px;
    background: rgba(241, 242, 243, 1); /*背景色不透明*/
}

.controls {
    padding: 5px;
    justify-content: space-between;
    font-size: 0.9em;
}

.messages {
    padding-top: 70px;
}
